Posted on 20 Comments

Liebherr LTM11200

Hi,

After nearly 10 months of hard work I am finally able to present the LEGO Technic replica of the Liebherr LTM11200 crane. It is one of the biggest roadworthy cranes in the world and I have tried to do it justice in LEGO as well.

This is actually a redesign of the model I made in 2013. At that time I had designed the carrier, the superstructure and the outer section of the boom. I have gone through the entire design, updated it to improve on the weak points of the original design and updated it to the newer parts that are now available. I also designed the complete boom from the ground up.

When I started this model I wanted to make it the most complex remote controlled model that I could think of. At the same time I didn’t want to exceed the limitations that the LEGO PF system set. Which meant no more than 8 motors could be used in the model.

They are equally divided between the carrier and the superstructure. In the carrier one motor is used for switching, whereas the other three are used to drive different functions depending on the position of that switch. It has two positions. In position 1 the three motors are used for driving, steering and switching the steeringmode (you can steer normally, or you can crabsteer). In position 2 the three motors are used to expand the outriggers, elongate the outriggers and finally extend the outrigger feet.

In the superstructure a similar setup is used, only this time there are four positions for the switch. Which gives 12 different functions that can be remotely controlled. Of these 12 functions 8 are located in the superstructure itself:

  • Rotating the superstructure *
  • Raising/lowering the counterweight
  • Raising/lowering the hook
  • Raising/lowering the boom via the cylinders
  • Raising/lowering the boom via the rope-and-pulley system
  • Raising/lowering the arm of the operator cabin
  • Rotating the arm of the operator cabin
  • Tilting the operator cabin

And 4 functions are routed onto the boom:

  • Extending the 4 section boom *
  • Spreading the stabilizer arms
  • Tilting the stabilizer arms *
  • Raising/lowering the supporting legs (needed in case the boom has to be transported separately from the rest of the crane)

This model was always intended to push the edge of the possibilities with LEGO Technic. And unfortunately that edge pushed back. The model is incredibly complex (as an example: it uses over 300 gears) and doing all that in plastic proved to be too difficult for some functions. The functions with an asterisk require manual assistance when operating. And believe me, even though lifting the boom is possible by combining the cylinders and the rope-pulley system, it is really scary to see how much force is going through all that plastic.

Nevertheless, I feel that this model does not meet my quality standards. I therefor decided that I will offer instructions at 50% of the intended price, which means you can buy the instructions for 37.50 euros instead of 75 euros. You will be able to pay full price for the instructions if you want to encourage me to keep pushing the Technic boundaries with my upcoming models.

A big thank has to go to Merlijn Wissink who spend a huge amount of time on making the instructions. The instructions are done to LEGO standards and fill a book of 1174 pages. We did our best to make sure that every step is clear, but as you can imagine I might have missed something. Please let me know if there is anything unclear and I’ll try to explain what was intended.

The partslist on Rebrickable was also compiled with the utmost care, but also here errors could have been made by me. If you find out there is a piece missing (or too much), please let me know and I will update the list.

I hope you enjoy building and playing with this model as much as I did designing it. The end result is a nearly one meter long mammoth that can reach up to 2.5 m high. It is by far not the biggest crane made out of LEGO Technic, but it sure is one of the most complex.

Leg godt,

Jeroen

20 thoughts on “Liebherr LTM11200

  1. Awesome!

  2. Just downloaded the plans for the Liebherr, but where is the partslist?

    1. Hi Kris,

      You can find the partslist here.

      Jeroen

      1. Thank you

  3. hi iv just downloaded the parts list and will purchasing the build instructions next week, can you please send me a link for were is the best place to purchase all the parts. thanks

    1. Hi,
      You can purchase the parts at Bricklink.com or at brickowl.com

      1. thank you very much and I will be getting the build instructions from you next week,

  4. Dag meneer Ottens, ik dit ontwerp ongeveer hetzelfde als deze? https://youtu.be/NLvqkLEoD1k

    Ik ga u ontwerp volgen het is erg interessant.

    Mvg Remi

    1. Hi Remi,

      It is a similar crane indeed. The detailing is completely different though.

      Jeroen

  5. Hi Jeroen, i’ve already bought the instructions but i need the ldd file, you got it?

    1. The LDD file is not for sale I’m afraid.

  6. Hi I will be purchasing the instructions for this madel next week, however do you have any pictures of the finished model. I have seen the videos on your YouTube channel but no pictures or video of the completed model. Thanks Jason

    1. Hi Jason,
      I have been waiting for better weather to do photographs & video. I will make some photos tomorrow and hopefully I can shoot a video as well.
      Jeroen

  7. How much do the parts required to complete this cost please – approx obviously will do. THANKS

    1. If you would buy all the parts it is about a 1000 euro. But most parts are quite common, so if you already have a collection it will be much less. On Rebrickable you can check the inventory and see what parts you miss if you already have certain sets.

      1. We have bought al the parts on Bricklink at 5 stores, the most of the parts came from 1 store and he gave us a discount of 20% but the bill at the end was 1500€ for all the parts. Also not all the parts where on the building plan, and we made some small adjustments to make it run a little smoother

  8. Where can I get the instructions book in HK?
    Moreover, besides getting those partslist from internet , is there any store selling ?

    1. The instructions are only available as PDF. Since they are >1100 pages printing and shipping them will be very expensive.
      Parts can be bought at Bricklink.com or brickowl.com. I can do that for you if you want, send me an email (jeroen@jeroenottens.com) if you want a quotation for that.

  9. Hi, I saw on the eurobricks about redesigning the ltm11200. Is the current building instructions the latest redesign model?

    1. Yes it is, this is the final version

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